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Finding the Fourth Proportional to 388,608,051.30, 582,912,076.95 and 101,393,715.30

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Solution

The fourth proportional to 388,608,051.30, 582,912,076.95 and 101,393,715.30 is: 152,090,572.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,608,051.30 : 582,912,076.95 = 101,393,715.30 : x
  2. Step 2: Convert to fraction form
    388,608,051.30/582,912,076.95 = 101,393,715.30/x
  3. Step 3: Cross multiply
    388,608,051.30x = 582,912,076.95 × 101,393,715.30
  4. Step 4: Simplify right side
    388,608,051.30x = 59,103,621,175,199,992
  5. Step 5: Solve for x
    x = 59,103,621,175,199,992/388,608,051.30
  6. Step 6: Final answer
    x = 152,090,572.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.